      <aside>
          <div id="sidebar"  class="nav-collapse ">
              <!-- sidebar menu start-->
              <ul class="sidebar-menu">
                  <li class="active">
                      <a class="" href="index.html">
                          <i class="icon-dashboard"></i>
                          <span>管理首页</span>
                      </a>
                  </li>
                  <li class="sub-menu">
                      <a href="javascript:;" class="">
                          <i class="icon-book"></i>
                          <span>UI 元素</span>
                          <span class="arrow"></span>
                      </a>
                      <ul class="sub">
                          <li><a class="" href="general.html">基础</a></li>
                          <li><a class="" href="buttons.html">按钮</a></li>
                          <li><a class="" href="widget.html">小部件</a></li>
                          <li><a class="" href="slider.html">滑动条</a></li>
                          <li><a class="" href="font_awesome.html">字体icon</a></li>
                      </ul>
                  </li>
                  <li class="sub-menu">
                      <a href="javascript:;" class="">
                          <i class="icon-cogs"></i>
                          <span>组件</span>
                          <span class="arrow"></span>
                      </a>
                      <ul class="sub">
                          <li><a class="" href="grids.html">栅格化布局</a></li>
                          <li><a class="" href="calendar.html">日历</a></li>
                          <li><a class="" href="charts.html">图表</a></li>
                      </ul>
                  </li>
                  <li class="sub-menu">
                      <a href="javascript:;" class="">
                          <i class="icon-tasks"></i>
                          <span>表单</span>
                          <span class="arrow"></span>
                      </a>
                      <ul class="sub">
                          <li><a class="" href="form_component.html">表单 组件</a></li>
                          <li><a class="" href="form_wizard.html">表单 向导</a></li>
                          <li><a class="" href="form_validation.html">表单 验证</a></li>
                      </ul>
                  </li>
                  <li class="sub-menu">
                      <a href="javascript:;" class="">
                          <i class="icon-th"></i>
                          <span>数据表格</span>
                          <span class="arrow"></span>
                      </a>
                      <ul class="sub">
                          <li><a class="" href="basic_table.html">基础表格</a></li>
                          <li><a class="" href="dynamic_table.html">动态表格</a></li>
                      </ul>
                  </li>
                  <li>
                      <a class="" href="inbox.html">
                          <i class="icon-envelope"></i>
                          <span>信息 </span>
                          <span class="label label-danger pull-right mail-info">2</span>
                      </a>
                  </li>
                  <li class="sub-menu">
                      <a href="javascript:;" class="">
                          <i class="icon-glass"></i>
                          <span>其他</span>
                          <span class="arrow"></span>
                      </a>
                      <ul class="sub">
                          <li><a class="" href="blank.html">空白页</a></li>
                          <li><a class="" href="profile.html">个人资料</a></li>
                          <li><a class="" href="invoice.html">发票</a></li>
                          <li><a class="" href="404.html">404 错误</a></li>
                          <li><a class="" href="500.html">500 错误</a></li>
                      </ul>
                  </li>
                  <li>
                      <a class="" href="login.html">
                          <i class="icon-user"></i>
                          <span>登录页面</span>
                      </a>
                  </li>
              </ul>
              <!-- sidebar menu end-->
          </div>
      </aside>
